Three-effect evaporator

Three-effect evaporator

Product Overview

The triple-effect evaporator employs simultaneous triple-effect evaporation, with the secondary steam undergoing repeated action, thereby saving on boiler investment and reducing energy consumption. Energy consumption is reduced by 70% compared to single-effect concentrators, allowing users to recoup the full investment in the concentrator within less than a year. The triple-effect evaporator utilizes external heating and natural circulation with vacuum evaporation methods, featuring fast evaporation rates, high concentration ratios of up to 1.2-1.3. It is suitable for concentrating solutions of traditional Chinese medicine, Western medicine, starch, monosodium glutamate, dairy products, chemicals, and more, particularly for low-temperature vacuum concentration of heat-sensitive materials. Users can select from a series of concentrators based on their specific technical requirements.

Product Features

This equipment operates on the principle of a tube bundle-style external heating circulation, resulting in short material heating time, rapid evaporation, high concentration ratio, and effective retention of the original efficacy of the material.

Excellent energy-saving effect, saving about 70% of the evaporation volume compared to single-effect evaporators. Material is evaporated and concentrated in a closed system, ensuring a clean and comfortable environment; the unique defoaming device of this system equipment prevents material leakage.

All contact parts are made of imported stainless steel and polished for excellent corrosion resistance, easy cleaning, and compliance with food hygiene regulations. Available with a microcomputer control system for simple operation and stable performance.

Application Scope

Wastewaters that are not suitable for treatment by biological, chemical, or membrane processes, such as high-salt wastewater, electroplating wastewater, dyeing wastewater, etc.; and the evaporation and crystallization of sodium chloride, potassium chloride, sodium sulfate, sodium sulfite, copper sulfate, magnesium chloride, ferric chloride, ammonium chloride, barium chloride, copper chloride, calcium chloride, nickel sulfate, sodium hydroxide, potassium salicylate, sodium carbonate, zinc sulfate, potassium fluoroaluminate, fumaric acid, manganese sulfate, and ammonium fluoride.

Resource-recovery needs exist in wastewater from high-value-added manufacturers, such as the electronics industry, printed circuit boards, precious metal recovery, and film copying.

Liquid concentration during the production process, such as electroplating solution concentration, process concentration, high concentration liquid incineration pretreatment concentration, chemical process concentration, etc.

Cutting Oil for the Machining Industry

Working Principle

The three-effect evaporator crystallizer is conical in shape under the action of the guide tube, with the cross-sectional area gradually increasing from bottom to top. Therefore, as the fluid flows within the crystallizer, the velocity decreases. According to the sedimentation principle, crystals, being denser, settle more quickly. The evaporator bottom features a conical design to facilitate material sedimentation and discharge. Additionally, a guide tube is positioned in the middle of the evaporator for easy solid-liquid separation. Crystals settle to the bottom in the guide tube and then enter the bottom of the ceramic settling leg. The mother liquor at the edge of the evaporator is connected to the circulating pipeline and pump. The circulating pump sends the material to the heater, where it is heated and then re-enters the evaporator separation chamber tangentially, continuously circulating. The crystallized material is then pumped out through the ceramic settling leg.

Maintenance Instructions

1) Replace the lubricating oil twice within the first month of use, and then replace it once every 3-4 months thereafter.

2) After opening the low head, loosen the bolt at the bottom of the impeller U-shaped groove, and check and replace the scraper every four months.

3) Every two months, open the bottom bearing, inspect the wear condition, and replace if necessary.

4) Regularly soak and clean the inner cylinder with warm water or solvent, based on the material properties.

5) Add sealing fluid to the mechanical seal cavity once a month, using 20# mechanical oil.

Technical Specifications